Doctor insights on:
Prenatal Paternity Test
Several: The presumed father can provide DNA through a blood sample or cheek swab. The only non-invasive, and thus, safest, way to get a sample from the baby before birth is from a blood sample of the mother. The baby's DNA is present in varying amounts beginning as early as the 8th week of pregnancy. Google The American Pregnancy Association for more info. ...Read moreSee 1 more doctor answer
Paternity testing: a test, particularly of dna or genetic traits, to determine if a given man can be excluded as the biological father of a given child. If the tested man cannot be excluded, a probability of paternity is issued. A paternity test can exclude someone from being the biological father with a 0% probability of paternity, if there are at least 3 genetic markers ...Read more
How accurate is this test or is it a scam a prenatal paternity test that doesn't involve any invasive as the baby's DNA can be found within mums blood?
Do I have to tell my OBGYN that I got a non invasive prenatal paternity test (blood-mom swab-dad) at 8 weeks gestation? Can we trust the results?
My 8,14 and 18 week US said I conceived may 15th. But paternity test shows I conceived from April 17th encounter how could so many US be off?
Size: The ultrasound is an ESTIMATE based on the size of the fetus. If the fetus is not growing at the AVERAGE rate for a given dating then it will not correspond with actual conception date. If you have DNA confirmation of paternity & were not exposed in May, then you likely have an undersized fetus & should explore the reasons why. ...Read more
My 8 week ultrasound said I conceived may 15th but paternity test says I conceived in April. How could ultrasound be so far off?
+ or - 2 weeks: Ultrasound exams have an accuracy of plus or minus 2 weeks on either side of a date given in a report. Accuracy improves with multiple examinations over time(serial) that can determine fetal growth patterns. Technology is wonderful, but not the be all and end all in medicine. There is still room for MD's who can discern by examination, history, and LMP issues such as this. ...Read more
Yes: There is a non-invasive paternity blood test that analyizes fetal dna circulating in the mother’s blood. The baby’s dna is then compared to the dna taken (by buccal swab) from the potential father. This test can be performed as early as 10 weeks into the pregnancy. I highly recommend labtest md for testing. They have several locations. www.labtestmd.com. ...Read moreSee 1 more doctor answer
Is the non invasive prenatal paternity bloodtest from natera reliable? I did the test. 1 man was an inclusion, 1 indeterminate. Is it accurate?
Not in your case : If the test results for you were "indeterminate" then that means you will not be able to draw any conclusions from those results. ...Read more
Is a noninvasive prenatal paternity bloodtest, done with blood from alleged fathers, cfdna and 317.000 genetic markers a reliable test?
How do I get a paternity blood test? Do I go through my family doctor?My girlfriend is getting a prenatal DNA test. Can I do it without telling her?
Not sure who you are: I am not sure who you are at 55YO and a female. But, I doubt that you can request a paternity test in the scenario you describe. The mother of the child can request this, but the other issue is who pays for the test. The OB will know exactly how to do this but the mother of the fetus must be involved. ...Read more
No clue: This is a US based public information site that offers to answer medical questions if you provide background information. We have no access to or knowledge of local medical or lab resources around the world where this site is seen. What or where "JHB" is located is also a puzzle. Contact a local doc or health center for such information. ...Read more
NIPP: Non invasive paternity testing is a technology based on detection of fetal cells in the mother's blood. A variety of specialty labs offer this service and cite the ability to find such results as early as 8 weeks into the pregnancy. Traditional testing requires fetal cells from invasive procedures like sampling amniotic fluid by needle or the placental cells. ...Read more
Blood was mixed up. But more likely to show negative.
Someone bribed the person doing the test. ...Read more
Unlikely : The key words of your question are credible and non-invasive.There are reports of maternal blood being used for screening, yet this technology is far from being accepted in court. Samples of the fetal membranes (cvs) or amniocentesis are accepted methods, but both pose some risk to mother and baby. Most paternity issues are handled by off site labs, hospitals or patients can obtain the test kits. ...Read moreSee 1 more doctor answer
Got two men tested for paternity test on my bby. I only slept with those two about two or three weeks apart. Both test came back negative how is that?
Impossible...: If you only had sex with two men, then one of them is the father. Either there was a "testing error" (labs are reliable, if they got the correct specimen this is very unlikely), one of the two men didn't actually get tested, or you have forgotten about another possible father. Good luck. ...Read more
After birth: This can be done on cells obtained from the womb by amniocentesis or from the placenta by cvs. Both procedures have some risk to mom and baby and paternity issues are not considered worthy of the risk. As soon as the kid is born, material can be obtained & sent.There are several commercial labs that do this and the hospital should have a number for information.It is not covered by insurance. ...Read more
Before/after birth: Non invasive paternity testing (NIPP) is a technology based on detection of fetal cells in the mother's blood. A variety of specialty labs offer this service and cite the ability to find such results as early as 8 weeks into the pregnancy. Otherwise the baby can be tested at or soon after birth from a direct sample. ...Read moreSee 1 more doctor answer
With significnt risk: Dna can be obtained prior to birth by inserting a needle in the bag of waters & withdrawing fetal cells for study. There are some medical reasons for this procedure that make the risks worth taking.However, curiosity about paternity is not one of them. The procedure carries some risk of infection or injury to both mother & child & rarely causes death. ...Read moreSee 1 more doctor answer
Ask your lab: The lab you work with may have specific instructions on obtaining samples & it is best to follow their instructions. I see no reason a newborn could not provide a sample adequate for their needs. ...Read more
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